Which to use
“plan” is an adjective and “Planet” is a noun - they look or sound alike but fill different roles in a sentence.
- #391
- “plan” frequency rank
- #17,231
- “Planet” frequency rank
- 17622
- confusion score
Side-by-Side Comparison
| Feature | plan | Planet |
|---|---|---|
| Definition | Qui est uni, plat, qui ne présente ni courbure ni ondulation. | Planète. |
Where the eye mixes plan and Planet
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.
Visual trap between plan and Planet
These two trip readers on the page rather than in the ear: plan is \plɑ̃\ while Planet is \plaˈneːt\. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 extra letter(s) - “plan” sits inside “Planet”, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 17622, derived from the frequency rank of both members and their visual similarity.
plan is recorded at frequency rank #391, classified as anadj, pronounced \plɑ̃\. Planet is at rank #17,231, tagged as anoun, pronounced \plaˈneːt\.
Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.
With a confusion score of 17622, this pair ranks #382,283 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of plan vs Planet
Shared letters: alnp. Private to "plan": -. Private to "Planet": et.
"plan" · 4 letters · shape CCVC · "Planet" · 6 letters · shape CCVCVC
Known mistypes of this pair
Frequently Asked Questions
Do "plan" and "Planet" mean the same thing in a sentence?
In ordinary French text, does "plan" or "Planet" show up more?
Useful next steps
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "plan" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "Planet" - compare definitions side by side with the headword page. Word entry
- This pair ranks #382,283 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "plan" and "Planet" also get mixed up with nearby pairs, the highest-scored neighbour is "planant vs Planet". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #382,283 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.